Diagram of a square-based pyramid in a 3D coordinate system. The base vertices are A(6, 0, 0), B(6, 6, 0), and C(0, 6, 0). The apex is D(3, 3, 9). The pyramid is shown with solid and dashed lines to indicate depth.
A square-based pyramid has base coordinates O(0, 0, 0), A(6, 0, 0), B(6, 6, 0), and C(0, 6, 0). The apex of the pyramid is D(3, 3, 9).